The Kremlin said on Friday that it did not believe that a tougher stance U.S. President Donald Trump has adopted towards Russia over its war in Ukraine means the end of U.S-Russia talks aimed at reviving their battered ties.

The European Union and Britain on Friday sought to ramp up economic pressure on Russia to halt the war in Ukraine by slashing a price cap meant to choke off revenues from key oil exports. The EU and Britain said they would lower the cap on Russian oil exported to third countries around the world to 15 percent below market value.

U.S. President Donald Trump has voiced frustration with Russian President Vladimir Putin over the intensification of attacks.